Microsoft 365 Alert – Service Degradation – Exchange Online – Users may be unable to view the body of edited Exchange Online email messages from the Sent folder – ONGOING

01/06/2026 08:44:00 AM

NHSmail Reference: INC46839190

Microsoft Reference: EX1318421

Issue Status: ONGOING

Issue Description: Users may be unable to view the body of edited Exchange Online email messages from the Sent folder.

More info: When a user opens and edits an email message in the draft folder, sends it, and then views it from their sent folder, the edited portion may appear blank in the message preview.

Impact only occurs for users utilizing the “Show email as individual messages” Message organization setting. While we work on mitigating this issue, users can utilize the “Show email grouped by conversation” message organization setting to avoid this issue.

Current Update: 01/06/2026 08:44:00 AM –Microsoft has developed a code fix to address this issue and anticipate it will complete its deployment by their next scheduled update, at which point they will look to confirm remediation with a subset of affected users.

Scope of impact: Users attempting to view the body of edited Exchange Online email messages from the Sent folder may be unable to do so. This is subject to change as our investigation continues.

Root cause: A code issue occurs when an email message is saved to drafts and it creates a local copy. When a user edits the email message in drafts, sends it, and then views the email message from their sent folder, it attempts to reference the stale local copy instead of the edited version. As a result, the attempt to fetch the body fails and causes impact.

Next update by: Friday, June 05, 2026, at 10:30 PM UTC